Hqwasd parker



Oct'. 5 1926.

H. PARKER l GORE CAP Filed Fey. 18 1925 ietented @et i, i926,

STM

OW'AED PARKER, OF BERLN, NEW HAMPSHIRE, ASSIGNOR TO BROWN COMIANY,

0F BERLIN, NEW HAMPSHIRE, yA CORPORATION OF IVIAINE.

Application led February 'i`his invention has relation to tubular mandrels such as are utilizcdin rfinding'or reeling paper as delivered from r-inaling machine` but more particuariv relates to the metallic. caps which are rnployed in connection with such cores or n ls when the latter are made of fibrous a suitable fabric or paper wound into a the convolutions cemented together by some suitable adhesive material or they`- are frequently made by winding a web of wet cellulose pulp in such manner that when the same are dried the wall of the i e is substantially homogeneous and nonlamina-ted,

111e particular object of the present ini'e Ation is to provide a metallic cap for use in connection with such cores for protecting vthe ends-thereof and vfor providing a metallic notch or recess with which the driving members or keys of the winding or reeling mechanism, ma)y be. engaged.

The invention consists of a drawn .sheet metal cap comprising an inner sleeve and on outer sleeve with an integral rim or web connecting the outer ends of the sleeves. the end of the cap thus .formed being notched,

there being a reinforcing member introduced into the annular space between the sleeves and having a notch or recess registering with the notch or recess of the sheet metal cap.

@n the accompanying drawings, Figure 1 illustrates a core cap embodying the invention.

1 Figure 2 represents a longitudinal section through the same on the line Q-2 of Figure 1.

Figure 3 represent-s a reinforcing member. Figure. 4 represents an enlarged section on the line lr-4: of Figure 1 of a part of the core cap.' I

1n accordance with the present invention, tne sheet metal portion of the cap is formed of a single piece of sheet metal, which by ineens of suitable dies and presses is drawn into the form shown in Figure l so as toY afford an inner sleeve 10, an outer sleeve 11 and a web or rim 12 integral with and connecting the two sleeves. These elements 10, 11 and 12 may be all of the same thickness.- Preferably, although not necessarily, the inner sleeve is longer than therouter finch cores or mandrels are made COR-E CAP.

serial n. 10,052.

sleeve. 11. The two .sleeves are separated sufliciently to form an annular recess of ad@ quate size to receive therein the cnd of a core or mandrel 13. I hav@ not deemed it necessary1 to show a. complete core or mundrel1 but it will be understood that itis provided at each end with a core cap em` bodying the present invention. As initially produced,'the sleeve 11 preferably7 flares outwardly as at 14- and the end of the sleeve 10 tapers inwardlv at 15 to 'facilitate the introduction of the end of the core or mandrel into the annular space afforded by the two sleeves. After the cap has been formed as herein described. there is inserted into the annular recess a reinforcing member. This preferably taires the form of a rolid metal ring or annulus 1G. This is preferably formed of a bar of iron .or steel which is bent into c vlindrical form with its ends either touching or closely adjacent and of such diameter and dimensionslhat it may lie introduced into the annular recess of the cap and fit friction-tight therein. After the rcinforcing member 1G has been inserted in place, a notch is formed bv a suitable prees through the inner and outer sleeves 11 and 10, the rim or web 12 andthe reinforcing member 1G as indicated at 17. .By thc employment of a suitably formed punch and punch plate for use in such die in forming the notch. the metal of the sleeves and the reinforce is more or less dragged or pinched together as illustrated more or less conventionalli-7 in Figure 4,. That is to say, the all of the sleeve l1 is forced inwardly as at 18 and compacted against the metal of the reinforce 16. more or less and to be forced inwardly asy at 1Q against the inner sleeve 10. Thus the sleeves and the reinforce, although notI actuallv welded together, are so interlockcd The latter appears to flow` that the ring Aor reinforce 16 is thereafter inl capable of relative movement. and it is unnecessary to spot-weld or otherwise to secure the reinforcing member in position. Preferabl)7 the depth of the notch is' not as great as the width of the annular memberv 16, as indicated by dotted lines in Figure which constitutes the inner and the. outer sleeves and the integral connecting web or rim and a relatively heavy reinforcing' member which occupies a portion of the annular recess between the sleeves and which abuts against the rim or web. lllhen the cap 1s placed upon the end oit' a tubular core or mandrel, the latter abats against the reinn forcing member.

Any suitable means may be utilized for interlocking the cap and the end of the core. Preferably-'the flaring portion 14; of the outer sleeve is pressed or spun into enT gag'ement With the exterior Wall of the core and the extremity oil the inner sleeve l0 is spun or pressed outwardlyfinto engagement with the inner Wall of the core or mandrel as shown in Figure 2. Other engaging means may be utilized for connecting the core and the cap together. For example, the two sleeves may be provided with indentations 2l, Z-l, 'to constitute a key for engag" ing a slot 22 formed in the end ot the core or mandrel.

i core cap, formed as herein described, is capable ot great. abuse and rough handling;` without being distorted or injured. .Ordinarily one o1u the. Weak points in a. core or mandrel is at the notch which is formed therein so as to be engaged by a key or driving men'iber. In the instant case, the "Walls ot' the notch are termed in part by the reinforcing member which is capable ot withstanding the sudden shocks and jars without injurye recalca What l claim is l. A core cap comprising an inner sleeve, a spaced outer sleeve and an integral'fconneet ing Web or rim, all formed of one piece ot drawn metal, and a reinforcing member located in the annular space between the sleeves against Which the unnotched end of the core may abut, said sleeves, Web and reinforcing member being all notched or recessed to receive a driving key or member.

2. A core. cap comprising an inner sleve, a spaced outer sleeve and an integral con: necting;- Web or rim, all termed of one piece olf drawn metal, and an annular; reinforcing member located in the annular space between the sleeves against which the end ot the core may abut, said sleeves, web and reinforcing member being` notched or recessed to receive a driving key or member, the Wall of the notch being continuous at the sides and bottom thereof. l

A core cap comprisimgan inner sleeve, a spaced outer sleeve and an integral connec-ting` web or rim, all formed in one piece ot drawn metal, and an annular reinforcing member located in the annular space between the sleeves, said sleeves, web and reinforcing member being,- notched or recessed to receive a driving key or member, and the said parte being interlocked at the Walls of said notch or recess.

.ln testimony whereof l have alizied my signature.

HUWRD )Pili KES. 

